The diagram which most specifically classifies the numbers is A.
Whole numbers are non - negative integer values such as 1, 2, 100, 200 e.t.c. This means that, 5 falls into the category of whole numbers.
Integers are both positive and negative whole numbers such as -1 , 9, -8/2 e.t.c . This means -26 and -4/4 falls into this category.
Rational numbers are numbers which can be expressed in the form : a/b , where b ≠ 0. Here, the value 9/16 and 1.33(133/100) falls into this category.